Jack Hallahan and his family milk 112 cows on their farm near Crookstown, Co. Cork on a milking platform of 40 hectares. His cow type is a Holstein Friesian delivering 440 kg milk solids per cow with an average herd EBI of 134 Euro. His grazing season length extends fron the start of February to mid - November. His soil type is a well drained brown earth soil with a shale bedrock. Jack has recently purchased (July 2021) a new slurry tank with dribble bar attachment to help maximise the value of his slurry as a fertiliser and he plans to increase his use of protected urea to lower his farms environmental impact.